By dragging my tables from Server Explorer onto the design surface of Object Relational Designer, I can create the mapped entity classes in a DataContext. Showing those tables in DataGridView is easy ...

I have a C# Windows service that will run anywhere from a few hours to a few days and then stop running due to an unhandled exception (see below description from the Windows Application Event log). ...

anyone would help me to construct sample linq query which would be similar like below sql query. my data is stored in datatable and i want to query that data table by linq which would look like below ...